Collaborative Research: RAPID: The 2011 Atchafalaya River Flood and a possible altered system state for the Atchafalaya River Delta Estuary

合作研究：RAPID：2011 年阿查法拉亚河洪水和阿查法拉亚河三角洲河口可能发生的系统状态改变

• 批准号: 1141354
• 负责人: Brian Roberts
• 金额: $ 9.26万
• 依托单位: Louisiana Universities Marine Corsortium
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-01 至 2014-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1141354&HistoricalAwards=false
• 关键词: Collaborative; Research; RAPID; 2011; Atchafalaya

This RAPID research project will examine ecosystem and biogeochemical impacts of a 200-year flood of the Mississippi River along a transect from the Atchafalaya River, which is receiving massive inputs of water from the Morganza Spillway in addition to already high flood waters, to the Atchafalaya River Delta Estuary, to the northern Gulf of Mexico. The researchers will focus on how an extreme event in a river system having extensive interaction with wetlands and floodplain swamps alters carbon quality, nutrients, and sediment transport to the Gulf, as well as how these biogeochemical changes affect ecosystem respiration and the food web. The broader impacts of the research include contributions to human resource development and to management issues. The project will interface with an existing Research Experience for Undergraduates program, affording students an opportunity to gain first-hand experience studying an extreme event in a floodplain river. Because extreme events such as this are expected to become more common in the future, this study will provide important information to managers, who currently must make decisions about river and flood management based on limited knowledge of the ecosystem effects of this type of event.

该 RAPID 研究项目将沿着阿查法拉亚河横断面研究密西西比河 200 年一遇的洪水对生态系统和生物地球化学的影响，除了已经很高的洪水外，阿查法拉亚河还从摩根萨溢洪道接收大量水。三角洲河口，至墨西哥湾北部。研究人员将重点研究与湿地和洪泛区沼泽广泛相互作用的河流系统中的极端事件如何改变碳质量、营养物质和沉积物向海湾的输送，以及这些生物地球化学变化如何影响生态系统呼吸和食物网。该研究的更广泛影响包括对人力资源开发和管理问题的贡献。该项目将与现有的本科生研究体验项目相结合，为学生提供获得研究洪泛区河流极端事件的第一手经验的机会。由于此类极端事件预计在未来会变得更加普遍，因此这项研究将为管理者提供重要信息，他们目前必须基于对此类事件对生态系统影响的有限了解来做出有关河流和洪水管理的决策。